Huawei SUN2000 Series User Manual page 95

SUN2000-(196KTL-H3, 200KTL-H3, 215KTL-H3)
Seires
User Manual
Alarm Alarm Name
ID
2014 High input
string voltage to
ground
2015 PV string loss
Issue 03 (2021-09-30)
Alarm Cause
Severity
Major Cause ID = 1
The voltage between the
input PV modules and the
ground is abnormal, and
there is a risk of power
degradation.
Warning This alarm is generated
when the PV string status
is abnormal due to the
following conditions: a
single PV string is lost.
Cause ID 1-14: PV strings
1-14.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Troubleshooting Suggestions
1. If no PID compensation
device exists in the system,
disable the PID protection
function at night. Note: If
the PID protection function
is disabled but reactive
power compensation at
night is enabled, PV
modules may be degraded.
2. If the system has a PID
compensation device, check
whether the device is
abnormal. If yes, rectify the
fault.
3. Check whether the settings
of compensation direction
for the inverter and the PID
compensation device are
consistent. If not, set them
to be consistent based on
the PV module model.
(Note: If the PV– is set to
positive offset, the voltage
between the inverter PV–
and the ground should be
greater than 0 V to clear
the alarm; if the PV+ is set
to negative offset, the
voltage between the
inverter PV+ and the
ground should be less than
0 V to clear the alarm.)
4. If the alarm persists,
contact your dealer or
Huawei technical support.
1. If the PV string access type
is manually set, check
whether it is consistent
with the actual access
status.
2. Check whether the inverter
terminals are properly
connected.
3. Check whether the PV
string terminals are
properly connected.
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